Use base::TimeDelta::FromTimeSpec helper in more places.

Change-Id: Id3444dca74b55269c4f07c303f2f9c49cc0e6049
Reviewed-on: https://chromium-review.googlesource.com/c/1485699Reviewed-by: Dan Erat <derat@chromium.org>
Reviewed-by: Yuchen Liu <yucliu@chromium.org>
Reviewed-by: Antoine Labour <piman@chromium.org>
Reviewed-by: danakj <danakj@chromium.org>
Commit-Queue: danakj <danakj@chromium.org>
Cr-Commit-Position: refs/heads/master@{#635312}

chrome/browser/chromeos/dbus/metrics_event_service_provider.cc

@@ -6,6 +6,7 @@
 
 #include <time.h>
 
+#include "base/time/time.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/resource_coordinator/tab_manager.h"
 #include "dbus/message.h"
@@ -54,7 +55,7 @@ void MetricsEventServiceProvider::EmitSignal(metrics_event::Event_Type type) {
     PLOG(DFATAL) << "clock_gettime";
     return;
   }
-  int64_t now_ms = timespec.tv_sec * 1000 + timespec.tv_nsec / (1000 * 1000);
+  int64_t now_ms = base::TimeDelta::FromTimeSpec(timespec).InMilliseconds();
 
   dbus::MessageWriter writer(&signal);
   payload.set_type(type);

chrome/browser/chromeos/power/ml/real_boot_clock.cc

@@ -19,8 +19,7 @@ base::TimeDelta RealBootClock::GetTimeSinceBoot() {
   struct timespec ts = {0};
   const int ret = clock_gettime(CLOCK_BOOTTIME, &ts);
   DCHECK_EQ(ret, 0);
-  return base::TimeDelta::FromSeconds(ts.tv_sec) +
-         base::TimeDelta::FromNanoseconds(ts.tv_nsec);
+  return base::TimeDelta::FromTimeSpec(ts);
 }
 
 }  // namespace ml

chromecast/media/cma/backend/android/audio_sink_android_audiotrack_impl.cc

@@ -13,6 +13,7 @@
 #include "base/logging.h"
 #include "base/single_thread_task_runner.h"
 #include "base/threading/thread_task_runner_handle.h"
+#include "base/time/time.h"
 #include "chromecast/media/cma/base/decoder_buffer_base.h"
 #include "jni/AudioSinkAudioTrackImpl_jni.h"
 #include "media/base/audio_bus.h"
@@ -284,12 +285,10 @@ void AudioSinkAndroidAudioTrackImpl::ReformatData() {
 void AudioSinkAndroidAudioTrackImpl::TrackRawMonotonicClockDeviation() {
   timespec now = {0, 0};
   clock_gettime(CLOCK_MONOTONIC, &now);
-  int64_t now_usec =
-      static_cast<int64_t>(now.tv_sec) * 1000000 + now.tv_nsec / 1000;
+  int64_t now_usec = base::TimeDelta::FromTimeSpec(now).InMicroseconds();
 
   clock_gettime(CLOCK_MONOTONIC_RAW, &now);
-  int64_t now_raw_usec =
-      static_cast<int64_t>(now.tv_sec) * 1000000 + now.tv_nsec / 1000;
+  int64_t now_raw_usec = base::TimeDelta::FromTimeSpec(now).InMicroseconds();
 
   // TODO(ckuiper): Eventually we want to use this to convert from non-RAW to
   // RAW timestamps to improve accuracy.

chromecast/media/cma/backend/media_pipeline_backend_for_mixer.cc

@@ -9,6 +9,7 @@
 
 #include "base/bind.h"
 #include "base/single_thread_task_runner.h"
+#include "base/time/time.h"
 #include "build/build_config.h"
 #include "chromecast/base/task_runner_impl.h"
 #include "chromecast/media/cma/backend/audio_decoder_for_mixer.h"
@@ -235,7 +236,7 @@ int64_t MediaPipelineBackendForMixer::MonotonicClockNow() const {
 #else
   clock_gettime(CLOCK_MONOTONIC, &now);
 #endif // MEDIA_CLOCK_MONOTONIC_RAW
-  return static_cast<int64_t>(now.tv_sec) * 1000000 + now.tv_nsec / 1000;
+  return base::TimeDelta::FromTimeSpec(now).InMicroseconds();
 }
 #elif defined(OS_FUCHSIA)
 int64_t MediaPipelineBackendForMixer::MonotonicClockNow() const {

ui/gl/sync_control_vsync_provider.cc

@@ -78,8 +78,7 @@ bool SyncControlVSyncProvider::GetVSyncParametersIfAvailable(
             base::TimeTicks::Clock::LINUX_CLOCK_MONOTONIC);
 
   int64_t real_time_in_microseconds =
-      real_time.tv_sec * base::Time::kMicrosecondsPerSecond +
-      real_time.tv_nsec / base::Time::kNanosecondsPerMicrosecond;
+      base::TimeDelta::FromTimeSpec(real_time).InMicroseconds();
   int64_t monotonic_time_in_microseconds =
       monotonic_time.since_origin().InMicroseconds();